Modified Bennett-Brassard 1984 quantum key distribution protocol with two-way classical communications
Abstract
The quantum key distribution protocol without public announcement of bases is equipped with a two-way classical communication symmetric entanglement purification protocol. This modified key distribution protocol is unconditionally secure and has a higher tolerable error rate of 20%, which is higher than previous scheme without public announcement of bases.
- Publication:
-
Physical Review A
- Pub Date:
- August 2005
- DOI:
- 10.1103/PhysRevA.72.022336
- arXiv:
- arXiv:quant-ph/0508206
- Bibcode:
- 2005PhRvA..72b2336W
- Keywords:
-
- 03.67.Hk;
- 03.65.Ud;
- 03.67.Dd;
- Quantum communication;
- Entanglement and quantum nonlocality;
- Quantum cryptography;
- Quantum Physics
- E-Print:
- 5 pages. To appear in Physical Review A